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Mathematics
Jesko Hüttenhain's user avatar
Jesko Hüttenhain's user avatar
Jesko Hüttenhain's user avatar
Jesko Hüttenhain
  • Member for 13 years, 3 months
  • Last seen more than a month ago
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About

I got my PhD from TU Berlin in 2017. I am still mostly interested in classical & complex algebraic geometry, geometric invariant theory and potential applications to complexity theory.

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question
66
Abstract nonsense proof of snake lemma
Feb 26, 2013
answer
52
Projection is an open map
Nov 29, 2012
answer
40
Proving that free modules are flat (without appealing projective modules)
May 31, 2013
question
25
Simple example of an ample line bundle that is not very ample
Oct 28, 2013
answer
25
Why the transpose of a singular matrix is singular?
Jul 24, 2018
answer
24
How should I think about very ample sheaves?
Feb 27, 2013
answer
16
Can a basis for a vector space be made up of matrices instead of vectors?
Mar 5, 2012
answer
15
How many non-increasing sequences are there over the natural numbers?
Feb 9, 2015
answer
14
Geometric meaning of completion and localization
Apr 3, 2013
answer
14
Irreducible polynomial means no roots?
Oct 27, 2012
Top Meta posts
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Using the Begingroup Extension of MathJax?
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Are there any mathematics that could only be learned by very few people?
28
Higher dimensional version of the Hurwitz formula?
25
What could be some potentially useful mathematical databases?
20
Is there a scheme parametrizing the closed subgroups of an algebraic group?
18
Top Chern Class = Euler Characteristic